SWCU194 March 2023 CC1314R10 , CC1354P10 , CC1354R10 , CC2674P10 , CC2674R10
All other audio interface-related register configuration (pins, serial format, clocks, sample word sizes, and channel mapping) must be completed before writing a nonzero value to the I2S:AIFDMACFG.END_FRAME_IDX register.
To prepare input and output DMA for start-up, the software must preload the first and second DMA pointers to be used and must arm the DMA:
The input and output DMA are then started independently by the samplestamp generator, as described in Section 25.6.2.